OAKLAND -- A woman was found stabbed to death on a West Oakland street early Thursday, police said.

Police were trying to identify the woman, whose body was found at the intersection of 24th and Chestnut streets about 3:44 a.m. by a passing motorist. She was pronounced dead at the scene.

Homicide investigators were called to the scene.

It was not known if the woman was killed where she was found or somewhere else and left there by her attacker.

No motive has been determined and no arrests made, police said.

Police and Crime Stoppers of Oakland are offering up to $10,000 in reward money for information leading to the arrest of the killer. Anyone with information may call police at 510-238-3821 or Crime Stoppers at 510-777-8572.